Integer storage mechanism



Aug. 29, 1944; w. J. z N E-R ,3

INTEGER STORAGE MECHANISM Origifial Filed 001;. 1, 1941 5 Sheets- Sheet 1 mvsmon WALTER J. zauuea FIG. I

A ORNEY.

' Ak OR NEY.

5 Sheets-Sheet 2 INVENTOR.

WALTER J. ZENNER W J ZENNER INTEGER STORAGE MECHANISM Ongmal Flled Oct 1, 1941 Aug. 129, 1944.

Aug. 29, 1944. w. J. ZENNER INTEGER STORAGE MECHANISM Original Filed Oct. 1, 1941 5 Sheets-Sheet 5 FIG. 3 v

III

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INVENTOR. WALTER J. ZENNER Aug. 29, 1944. w. J. ZENNER INTEGER STORAGE MECHANISM Original Filed Oct. 1, 1941 5 Sheets-Sheet 4 INVENTOR. WALTER J- ZENNER ATT Aug. 29, 1944.

J. ZENNER INTEGER STORAGE MECHANISM Original Filed 001;. l, 1941 5 Sheets-Sheet 5 FIGS 4 M ooooooooo INVENTOR. WALTER J. ZENNER A ORNEY.

Patented Aug. 29, 1944 Q UNITED :STATES- I-IPATENT OFF-ICE;

INTEGER STORAGE MECHANISM 7 .Walter J. Zenner, Des Plaines, 111., assignor to Teletype Corporation, Chicago, Ill., a corporation of Delaware .Original application October .1, 1941;;Serial1No. ;413-,079. Divided and thisapplication ril; 12,

1943, Serial No. 482,731

'1 Thepresent inventioriwrelates to. signaltolling ;circu;it interrupters for-generating audible alarm .aapparatussand, more particularly to astorage ;;.si ea t ereby;

smechanism, ,for receiving a signal setting from ,i -Eig. ;-2 ;is -a side elevation; of .the apparatus :whichan audible signal character may be gen- .ji'l-lustrated in Fig. 1; werated. 5 Eig; 3 is an:,;end elevation. of the apparatus This application is a division of application {illustrated in Figs. 1 and 2,-certainportionsbeing .Serial No.;,4l3,079,' filed October 1, 1941,, now :brclre raway; vPatentNo; 2,334,-467,"issued Nov. 16, 1943. g'Fig.- 4;is' ;a3 transverse sectional view taken zThemsnaltype-storage mechanism comprises approximately on line 4-4 of Fig.2; :;;adevice which has settablepins correspondingglo *Fig. 5 is atransverse sectional view taken .;,to gtl1e .desiredintsger. 7 After, the tollingsignal appr ximate y 11 1 6 g.

-.h.as-.-.been generated it;is necessaryto release :Fig. 6 is adetailed. p r pective view of a store therpineand thenposition the device back to e fldi c assembly releaseme a m;

;;.a,i .g;1e zero position, which takes up, a, certain yFig. 7 is a- -disrnantled group view illustrating 1 amount-of time, often almost equal to ,an entire5115 fh cqm o e t.; m the un mb k -cyc leof the device. This is notv desirable as it e ture Fi 1 1305131116- ;cal1,s es: a delay -during which. no tolling signal Fi 1: a, Schematic i cuit i lust ation of a .-may-be generatedand which, in the case of'fire ,cP fl i n f the rewiring, o -pp of a fire alarm ;a1armsystems, may result inythe loss ofrval- .f,'.SY$l e pa c larly related to the P n nable time. ;invention.

eAccordingly 'the principal object of lthe inven i m odi he present ,tion is to provide a variable integer storage e ifi t Q I -BSi I qt as P Of --,mechanism which f ollowing each tollingoperaa xiliar systemtothe O e disclosed'in t e ;tion is immediately ready to be set for a gsuc- E- Wack t vcop m n app cation for a ..--.-ceedi 1 1g-integersignal and-whichres t itself fire, alarm transmission system,-Seria1 No.--345,260 ate a zero-condition during-movement pursuant r W h ropa ation of fire alarmmessages -to a currentsignaling operation, ofa formal; type is proposed to operate telegraph ;In i ts; specific contemplation, the;.mechanism p in n apparatus 'JA eXplainedgin id ;may be; briefly described as a frictionally' driven a P n n a 0 he s c nte p a ed the wheel. having, a pluralityof esettable elements provision of apparatusi'fol' ra n t zy-angularlyrdisposed on its periphery, each set- "iinals'to gagh'fmessage. so that a table element having a spring urging itinone i'l h byighad Of't p i i fl xd wdirection and a shoulder for latchingthe eleeach m a transmitted received wment whenit is moved in the opposite-direction. destlpatlon q Also asffixp-lained rA'lbar is in proximity to the lower portion of 355m Sam."apphcatloni'prqvlsion made for -;-the.;whee1. and arrests rotation of the wheel by ei theilength and the number ofi'repe .engaging the latched element, but releases the itmons each message under the control of :wheel; to rotation when acted, upon -by-a bel1 ifi' i ga g "g m m rycrankplever. which. is under the control of an ?b gg g gg ggssggii g gg l fi- :,.armature of an electromagnet. After release of lwmani'pulafion of a eyboard, 6 r, ance w e tdthej'wheel' cam projection un.1atche the seti In the accompanying'dr awings the reference t ie itllale element prteparatory to its be ng reset. character H, dsigmtfis generally-Ta signal coding norestora lonto azero P05113101} 15 reflyannamtus':umbwhich gonsists aflsupporting .{structurecom risedvof two arallel id IL FOINaJ more comprehensive understandingof p p e rails l2 and 13 which are traversed b .-th mt e, p i isent:..lnventlon,- reference 18 madeeto the Versely l t. i fif f gfl gg gfig pi-accompanying drawings and following .An intermediate supporting rail lfigFjigl 1,,par-

detailed specification Whereinlike reference charallelil'lgi rails 12 and l3, and also connected to acters designate corresponding; parts throughout .50; thelmount platforms l4: and I5 affords support and. wherein: I V for a motor platform l1 as -well as to;a,l racket i a plan View par y Se Of viii-which carries a pair-of junction; blocks, l9 .-.,an apparatus thatis capab e f r an Sand. 2! to which the fiexible leadslfrom a.plu-

g; storing anumber ofsignals and in accordance ralityof mercury. t b wit h zz are m stherewlth of operating a number of individual oe u cpnnectei An electric motor 23 which is bolted to platform |1 drives, by means of a worm gear 24, the worm wheel 25 of a power distributing shaft 26 journaled in the bearing brackets 21 and 28 and driving with its worm gear 29 a large worm wheel 3|, the latter member being secured to a principal drive shaft 32 which is journaled in a pair of supporting brackets 33 and 34.

The armature of motor 23 and shaft 32 rotate in a clockwise direction as viewed in Fig. 3, and this is the direction of motion that shaft 32 tends to impart to its two frictionally driven assemblies 35 and 36.

Assembly 35 consists of a plurality of rotatable cam members integrally associated and driven by means of a pair of driving discs 31 and 38 which impinge upon an endmost cam element I33 and a spacer 40 of the assembly through the intervening agency of fibrous or friction discs designated 39. Disc 31 is a flange integrally associated. with a collar 4| that is secured to shaft 32 as by means of a set screw, but disc 38 is a flange integrally associated with the collar 42 splined to the shaft 32 but freely movable endwise or longitudinally thereof in which respect it is influenced by a helical compression spring 43 which is shouldered between another splined collar 44 and the described collar 42 of flange member 38.

The other driven assembly 36 is termed a storage disc assembly and it too is carried upon the described shaft 32. It consists of two spaced disc elements 45 and 46, see particularly Figs. and 6, carried upon a sleeve or drum member 41. This assembly is driven, as in the case of the aforedescribed cam assembly 35, by means of a pair of cooperating flanges 48 and 49, the former being integrally associated with the spring urged longitudinally movable collar 44 and the latter member, 49, being an integral part of the collar 5| anchored to shaft 32. Accordingly, since flange and collar members 42 and 44 are both longitudinally shiftable upon shaft 32, the com,- mon compression spring 43 acts jointly between the two of them to maintain frictional driving engagement between shaft 32 and their respective assemblies 35 and 36. In the assembly 36 fibrous frictional driving discs 52 are provided which function in the same manner as do the friction discs 39 of assembly 35.

Integrally formed with the drum 41is an endmost cam disc 53 having a scalloped periphery as indicated in Fig. 5. Assembly 36 is free to rotate in a counterclockwise direction as viewed in Figs. 5 and 6, under the influence of the drive shaft 32 when all of its transverse pawl members 54 are disposed in their respective release positions. Under the alternative of their conditions, namely, the set positions of said pawl members 54, which is the condition portrayed by the foremost pawl 54 of Fig. 6, its latching shoulder 55 engages that of disc 46 in a notch 16, since the pawl member has beenshifted rightwardly as viewed in this illustration compressing the individual spring 51. When in this condition a notch 58 formed in each pawl 54, Figs. 1, 2, and 6, is disposed sidewardly with respect to its normal position, so that as the pawl 54 reaches its lowermost position of travel as that illustrated by the foremost pawl. 54 in Fig. 6, the notch 58 is no longer in alignment with a stop lug 59 formed upon a trigger 6|. On this account, the storage disc assembly is arrested when a so disposed pawl 54 encounters the stop lug 59 and remains dormant until by the actuation of a release solenoid 62 the latter members armature plunger 63 is shifted rightwardly causing the rotation of a bell crank 64 in a clockwise direction about its pivot 65 and, since one arm 66 of said bell crank is articulated to the trigger 6|, the latter member is rotated clockwise about pivot [42 as a center so that its stop projection 59 is drawn free from blocking engagement with the side of pawl 54. Trigger 6|, in addition to being pivotally supported upon the pin M2 is also longitudinally shiftable with respect thereto since said pin I42 passes through a horizontal elongated pivot slot I50 and though trigger 6| is normally urged by a spring l40 backwardly and leftwardly as viewed in Fig. 6 so that integrally formed switch operating projection M3 is retracted permitting the contact pair |31 to stand ajar, this condition is reversed when storage disc assembly 36 through any one of its pawls 54, when in a set condition, bears against stop projection 59, for in so doing it also shifts trigger 6| forwardly and rightwardly. Accordingly, the arrestment of storage wheel 36 results in the closure of contact pair I 31 for a purpose which will become clearer during the course of subsequent description.

Upon the de-energization of release solenoid 62 which remains energized for but a brief period as will appear later, its associated elements 64 and 6| are permitted to resume their original condition but meanwhile the assembly 36 is freed to resume its rotation, th particular blocking pawl 54 having been retracted from its set position in which it engages lug 59. As the particular stopping pawl 54 proceeds in its rotary path together with assembly 36, its protruding portion, Fig. 6, engages a cam projection 61 by riding up onto its lowermost edge 68. This moves the latching end of the pawl 54 so that shoulder 55 is cammed away from locking engagement with disc 45, spring 51 restoring said pawl to its normal position whereat notch 58 is again in the peripheral alignment to clear blocking projection 59 of trigger 6|. In Fig. 4, the solenoid 62 may be noted to be disposed lowermost of a circular arrangement of solenoids, the general class of which have been designated 69 and 1|, each half of the circle being constituted of ten solenoids disposed on one side and the other of the central shaft 32 with the release solenoid 62 being the twenty-first one and centrally disposed at the bottom.

Each of the classes of solenoids 69 and 1| comprise ten individual solenoid members having armatures 12, Fig, 5, and flat spring elements 13 against which the foremost ends of the armatures or plungers 12 engage, and which serve to restore the plungers 12 after any solenoid has been de-energized. At their opposite endsrthe solenoid plungers are prevented from being removed from the assembly by the interposition of stop brackets 14. In the illustration, Fig. 8, the solenoids have been designated serially by numbers 1 to 21 as well as by the reference character designations employed in Figs. 1, 2, and 4. When any one of the solenoid armatures 12 responds to the energization of its solenoid 69 or 1|, it is moved rightwardly, as viewed in Fig. 2, causing its reduced projection to flex restoration springs 13 and to engage the rounded extremity 15 of its associated latchable pawl 54 moving the latter member sidewardly, as best indicated in Fig. 6 and against the influence of compression spring 51 until its shoulder 55 becomes 19. ofunit 1 I prepares a circuit for energizing one .in each one of said cradles 89. number of reciprocations imparted to the several ger 6|, the last operated one of said pawls 54 thus constitutes a newzero position. Following thearrestment of assembly 36, 'there maybe obtained a number of angular positions between I it'andanyone of the remaining pawlsa54 that might-become 'set bytheenergization of any of the solenoids 69 andH'xnumericallydesignated from l'to 20 in Fig. 8.' The energization. of any one of said solenoids-is efiected by the manipulationof a keybarin a-keyboard unit designated by the general reference character l'l which prepares a circuit traceable over an individual line in cable JB'throughthe winding of one of the solenoids 69 or. H to the common return circuit While the closure oione of the key-bars 8| of the solenoids 69 or II by placingground-on one of the-lines in cable 18, the energization of said-solenoid awaits the completion of the circuit -when current is placed-upon the common return wire 19-by the closure of contact pair 82 at a jprecise one'of a'plurality of regularly spaced intervals under the control'of a multiple apex cam 83,- Figs. 2, 4, and '7.

--jThefnumberof solenoids 62,69, and 1| which are assembled around the central shaft 32 cor- I responds tothenumber "of scalloped apexes in *cam 53. ,Asa result-when assembly '36 is permitted to rotate from a previously established yzer'o position, ;where it has been arrested due to the blocking of one of its pawls 54 with shoul der 59, to a subsequent position which may be 7 any number of angular steps from 1 to 20in termsiof the angular distances between adjacent pawls 54, cam53 will pass a corresponding number of "its scalloped apexes under the follower roller 84 reciprocating the lever arm 85 upon whichsaid roller 84v is carried about its anchored pivot 86 so that, its free .cndthrough the articulation pin 81. will induce, a corresponding mo- .ti on to the .verticallydisposed tandem bar 88.

As .a resultof the movement of tandem bar 88 yertically ina. reciprocating motion, there is transmitted a corresponding rocking movement ,toeach, one of a plurality ,of cradles 89 which are pivoted as at 9| to said bar'88. Since each one of the cradles is also pivoted as at 92 to a 7 pair of stationary upright members 93, the

movement transmitted to the several cradles B9 ,WiH cause them to rock in clockwise and coun- ,terclockwise motion correspondingly rocking the I mercury tube switches 22 which are held in lamp members 94 especiallyprovided for this purpose Accordingly, the

tube 22 will in turn efiect the opening and closure of individual circuits, Fig. 8, to the alarm .tolling bells 95 generating audible signals comprised of a plurality of successive gong soundings .to denote to fire station attendants certain in- .formation such as already explained above.

Eachunit in the keyboard 11 consists of an alignment of key bars 8| representing a decimal ,position and individually supported in a re- .--,movable ,unit section. 96. .Of. the several key- ,board sections, aparticular one designated 91 resembling-in mechanical details those of the .four sectionsj9fi, is especially, provided with. circ uit connections to the solenoids Til while the keyboard units. '96 wired in parallerover'lines .within ,cable 118;. are connected to the solenoids 69. ..Accordingly,. in the first decimal or numerical' position, there being five such positions in. accordance with the disclosure of Fig. 8, the

number of tolling bell signals to be transmitted by means of theunits 11 .will comprise a number of gongs between 11' and 20, since the keyboardsection 91, the first to be operated, is electhe solenoids. 69 so that accordinglythe signals following the first position will be comprised of -a number of gongs from 1 to 10, inclusive.

In the illustration ofFig. 8,,the keyboard unit 11 represents a device generally similar to the keyboard illustratediin copending application Serial .No. 345,260 discussed above, only such portions of the circuit being here indicated which concern the. operation of the gong tolling, ap-

' paratus.

Other portions of the keyboard apparatus, as well as of the remainder of the circuit illustrated in said copending' application, are

to be understood as being substantiallyv oi the type therein disclosed. Also, the requirement of providing a keyboard unit 91 and the solenoids l I through 20 for the purpose of tolling a larger number of integer signals than ,the primary number of from 1 to 10, is by way of illustrating -an arbitrary enlargement of. the fundamental disclosure. If a larger number of decimal positions than the five illustratedin Fig. 8 and represented by the five keyboard sections96 and 91 are desired, it is but necessary to provide such additionalsectionsinthe keyboard 11, and

in the cam distributor to provide additional distribution: cams and. .therebyHthereumay ;-be obtained a system in. which thenumberof call -digits will be correspondingly increased.

.In the illustration of a .cam assembly,35,;-in

*Figs. 1, 2, and: '7, space: hasbeen, provided for accommodating a largernumber oincams than thereare integersections in the keyboardunit 1 H. Some indication of the additional number of digits which may be. accommodated can be learned fromobserving the number .of unused spacings in'Fig; '7 which are not filled in bytiming cams such as-the ones designated 98, 99; I0],

' I02, and .103. I The relationship between the cams 98 to I03 and the contact pairsinFig. 8 maybe '-understood by comparing the; arrangement of the cam with: the schematic showingof the contact pairs inFig; 1. Thus cam 99, the-first Y of its class as shown in Fig. 7, controlsthe closing simultaneously :of: two contact pairs designated 1 04 and 105. Cam '98 controls the closure -of-two contact pairs. designated N16 and 101; cam

andl-U9; cam -IOZ closes the contact pairs lil llll control the'closure of two contact pairs 1,98

and H2, and camel93 controls in, the same manner closure of contact pairs, J23and 124; The

brief apex cam: H3 controls a, single contact pair l M, the cam Hiiwhose apex'is continuous but for a brief angle controls the closure si- -multaneously' of three contact pairs designated lll, -l=l8,= and H9, and the multitpleapex cams -83- and lZI, disposed in staggered relation'one from the other, each controls an individual contact pair designated-82 and [.22.

Subsequently, in the'description, the control circuits and the manner inwhich theqseveral cams of assembly 35 operate their contact pairs,

will be explainedin detail. with specifiorefcrence to their functional purpose. For the present it will suffice to note that during the normal or zero position of the assembly 35, which is an invariable position, all of the contact pairs remain open with the sole exception of contact pair II4 which is under the supervision of cam II3. The closure of this contact pair prepares a circuit which enables ground to be introduced upon the closure of a manual key lever I over line I26 through the cam held contact pair II4, winding of release magnet I21, line I28, to the positive current source. Release magnet I21, a may be observed from Figs. 1 and 3, is situated so that its pivoted armature i29 during the tie-energized condition of magnet I21 will block by means of its shoulder tooth I3I any of a number of peripheral teeth I32 of a stop disc I33 depending upon the possible number of contact sets which are to be operated thereby.

As soon as the assembly starts to rotate under impetus of the driving discs 31 and 38 of shaft 32, the release being efiected upon the energization of magnet I21, the apex of cam II3 rides off its follower lever I34, Fig. 1, and as a result the contact pair H4 is permitted to come ajar since each one of the follower levers such as I34 is provided with an individual spring I35 suited to this performance, as best indicated in Fig. 4. As oon as the contact pair I 84 opens, the control over magnet I21 by the manual start key I25 is withdrawn and thereafter magnet I21 in order to remain nergized obtains ground from a source supervised by cam II6 whose apex, Fig. 7, continues over a peripheral angle that is substantially the complement of 360 from the apex angle of cam II3.

Referring now to Fig. 8 it will be noted that contact pair H1, which is one of three contact pairs under the supervision of cam II6, becomes effective alternatively with contact pair H4, in-

sofar as introducing ground to the winding of magnet I21 is concerned. Whereas contact pair H4 is connected over line I26 to the ground supplied upon the closure of button I25, contact pair I I1 supplies ground from a source I41 over a line I36 through the closed contact pair I31, line I38, contact pair IIB which is closed during the same time that contact pair I I1 is closed, over line I49, contact pair I48, to a ground source I41.

It is to be understood, of course, that in setting up the keyboard 11 for the purpose of transmitting a message, the key bars 8| of one or more of the integer sections 96 or 91 are actuated before the start key I25 is actuated, and in accordance therewith a contact point I44 of one of the ten integer lead wires I39 is brought into electrical contact with a common bus I45, and also the conductor I4I of each unit is closed with a conductor I53. As a consequence, ground is placed on line MI, and the twenty-first solenoid 62 is conditioned for energization which energization is completed when contact pair I22 is closed by the multiple apex cam I 2| As a result of the energizati-on of solenoid 62, see Fig. 6, its armature is projected rightwardly as in-the case of the general class of armatures 12, bell crank 64 is rocked clockwise about pivot 65 and member BI is pivoted clockwise causing it to be pivoted about its mounting screw I42. This movement releases trigger H to its retractile spring I and the downwardly extending arm I43, which had been holding closed the contact pair I31, is permitted to recede therefrom breaking the ground circuit to the magnet I21 and thereat causing to be arrested the further rotation of cam assembly 35 because the armature I29 will at once engage an oncoming tooth I32 of the stop disc I33.

As a further result of the energization of magnet 62, and one which has already been mentioned above, blocking projection 59 will be withdrawn from a previously set one of the pawls 54 that had been holding the assembly 36 against rotation and in consequence, this assembly will be permitted to rotate in a counterclockwise direction, as viewed in Fig. 5, carrying with it the scalloped cam 53 and through it causing to be oscillated the entire cradle assembly including tandem bar 86 and the multiple switches 22. The number of oscillations which are permitted to be made by assembly 36 will depend upon the angular distance between the previously set pawl 54 which had been holding the assembly through its engagement with blocking tooth 59 and the newly -set pawl 54 which is dislodged by the operation of one of the integer keyboard sections 96 and 91 and which will again cause the arrestment of said assembly.

When the key bars 8| are depressed, there is eifected in each case a closure of one of a contact pair I44, Fig. 8, which is electrically connected over one of the lead wires I39 of cable 18 with a particular solenoid 69 or 1 I, and a common bus bar I which ultimately obtains ground. Also as a result of the energization of any key bar 8| of an integer set, there is effected a closure of the common contact pair designated I46 individual to each integer set 96 or 91. The contact pair I46 consists of one contact which is connected to the twenty-first solenoid 62 and another contact which is connected to one of the lower rows of cam contact pairs I04, I06, I08, III, or I23, Fig. 8.

As a result of the closure of any contact pair I46, ground is introduced from source I41, manual switch contact pair I48, line I49 through the contact pair II8 which remains closed during the long apex period of cam II6, line I5I, the particular one of the above-mentioned pairs of contacts I04, I06, etc., relating to the associated integer section 96 or 91, through the particular wire in cable I52 which relates to sa'id integer sections, thence over its individual line I53, contact pair I46 and the twenty-first magnet line wire I4I through the winding of solenoid 62, line I54, contact pair I22, which is closed twenty-one times during the cycle of rotation of cam assembly 35, to positive current source.

The tolling unit I I is driven by the motor 23 as already explained receiving power from an alternating current source I55 when a supervisory control relay I56 is energized in response to the closure of a switch I51 located in the keyboard unit. In addition to the afore-described responses resulting from the operation of any one of the key bars 8! in the keyboard unit 11, it is to be understood that permutation code signals may simultaneously be generated under the control of permutation code closing contact pairs as explained in the foregoing described copending application. At each outlying station, therefore, in addition to the provision of the afore-described means for creating an audible signal indicative of destination station identification or/and any other information desired to be thus communicated, there is also provided means for making a printed record of this and other information such as time signals, etc., within the contemplation of the disclosure in said copending application.

There having been explained above a structural description of the toll ball operating unit as well as the circuit connectionsincident to the make certain that the motor start contact pair I51 is closed at the start of transmission in'order that the motor 23 of the tolling apparatus l I is in operation. In accordance with this arbitrary conception, thekeyboard operator at the central office will depress the keytops 8| of integer sections 91 in the number 4 position which, as explained above. corresponds to the fourteen integer solecauseto be displaced the-pawl 54 which happens noids 1I, thereby preparing the keyboard for.

transmission of 14 gong signals; the number 3 key vbar- 8| of the left-hand unit .96 which will prepare for the transmission of thenumber 3 integer; the number 9 key. top 8I in the second unit 96; the number I key top 8| in-the third unit 96, andfinally, the number .2 .keytopBI in the last.unit 96, the foregoing order beingreadable 4 from'left to right as viewed in Fig. 8.

Following the setting .up .of the code. number upon the keyboard 11,' the operator-will close the manual start key, I25.and introduce ground upon line I26 through contactpair. .4, :which is closed during the rest position of the unit II, winding of startv magnet I21,.'line. I28,Lto positive. Asa result, magnetl21 will become energized and willflattract its armature I29 .withdrawingwstop shoulder I3I from the tooth in .wheel I33 which corresponds to the zero arrestmentposition- Cam assembly 35 will then be initiated into ro-. tationunder the driving impetusof shaft32-and its associated driving disc .31 and 38. which act. throughlthe frictional driving discs 39 upon said assembly 35.- As soon as contact pair I I4 ispere.

mitted to openin consequence of the riding oitbya apex of cam I I3 of the contact pair I I 4, see.Fig. 4,-

thelong apex cam I I6 will close the three contact. pairs I I1, H8, and .9 simultaneously. As a re-.

sultj-of the closure of contact pair.II1,' ground.- willjbe supplied to the windin of-Imag-net I21.

from a circulit including line I36, contact pair. I31, line I38, contact pair II8,line I49,Tcontact pair I49, to ground at I41. The rotationloficam.

assembly 35 will continue until the first one. of the class of, cams which close contact pairs .I05.. 'I04,

I06'I01.,etc., will'become efie'ctive. In the order.

in Which the arrangement-of cam is laid .out in. accordance with Fig. 7, the. first one. of theseto 1 become effective .is cam 99- actingupon contact pairs I04 and. I05. As a result of the closure .of.

thesev contact pairs, there will be energizedthe number I4 solenoid H and lthettwenty-firstlor storage. disc release solenoid .62 over. the followingcircuit.

Beginning at positive current source, the cir-.

'This contact pair is the .one designated I06 and cuit continues through the contactpair .82,.com-

monwire 19, through .the winding of the number I4 solenoid.1l,its particu1arline-I39 in cable 18 tosthecontact point. I44, its particular common bus-I45-in-its associated bank:91,rthence over an individual line in cable l52 through contact pair I05, line -I5I; contact pair II8, line I 49; contact pair I 48 to groundat I 41. A a-result,the num-' ber I4 solenoid 1I will become ,energized'tand will,

to be fourteen angular position distance from the previously arrested pawl 54. As a result of the closure of contact pair 82 which occurs substantially simultaneously with the closure of the several contacts on cam II6, a circuit is completed for theenergization of the twenty-first or assembly 36 release magnet 62. This is traceable irom'positive current, through the contact pair I22, line I54, winding of solen0id62, line I4 I of cable 18, and its associated contact pair I46, line countjof its articulation with bar 6| which is.

pivoted at 42, contact pair I31 is openedswhen said member 6|, acting against 'itssprin J40, withdraws projection I43 from said contact pair. In consequence of this, armature I29. is permitted to present it stop shoulder I3I into the pathioi oncoming tooth I32 in stopdisc I33. 'Meanwhile, wheel I36 is permitted to. rotate throughanangular distance equivalent to fourteen of the consecutive angles" represented'by the pallets 54.

This rotation carrying with it scalloped cam 55 causes to be initiated fourteen tolling gong signals to the several circuits connecting to the gongs 95. Because the projections on multiple apex cam I2I are of such" short duration, contact pair I22 is openedbefore'the assembly wheel 35 comes to rest and as a result solenoid 62 again becomes deenergized permitting its circuit at contact "pair I31 to become closed.- Meanwhile magnet I21 may not again become reenergized because its associated contact pair at one of the cams 993 98, IOI, etc., is no longer in position to hold closed its'contact pair I04, I05, I06, I01,-etc.

Assembly wheel 36 will then come to rest when the set pawl 54 encounters shoulder 59 of-stoptrigger 6|. Upon the collision-between pawl 54 and shoulder 59, member BI is moved forwardly, as viewed in Fig. 6, in accordance with the pro- ,thereupon magnet I21 maybecomereenergized attracting its armature I29 and again freein the cam assembly 35 to rotation.

Assembly 35 will continue 'to rotate until the next succeeding one of the contact pairs relating to the keyboard banks 96 'is encountered.'

I01 which is closed by the cam 98, Fig. 7." As a result of the closure of'contact pairs I06. and I01, circuits are established traceablefrom positive current source through contact pair '82 whichis momentarily'closed byone of the apices of multiple apex cam 83, line '19'throughthe winding dividual line I39 relating to said solenoid in the cable 18 to contact-point I44 and its, associated common-bus-bar"I45; thence through its individual line in cable :I52fcontact pair. I01,'lin-e contact pair I06 a circuit is completed traceable from positive through contact pair I22 which is momentarily closed by reason of the brief apex of multiple apex cam I 2| which closes its contact pair I22 shortly after the contact pair 82 is closed, thence over line I54, through the winding of the solenoid 62, its individual line wire I4I of cable 18, through the particular pair of contacts I 46 relating to the integer unit in which the next operated key lever 8I is depressed, thence out over line I53 of cable I52 through the contact pair I06, line II, contact pair I I8, line I49, contact pair I48, to ground at I41. As a result of the energization of solenoid 62 contact pair I31 is opened after the manner already described, thus de-energizing start magnet I21 and permitting the cam assembly 35 again to be arrested upon armature shoulder I3I encountering an oncoming tooth I32 of stop disc I33. As a further result of the energization of solenoid 62, assembly 36 is released to rotation and in this case will continue to rotate through an angle equivalent to three intervening angles between the pallets 54 and will come to rest when the pallet which had been lined up with the number 3 solenoid and which had been displayed by the energization thereof encounters the stop lug 59 of trigger 6|.

During the transit of the assembly 36, its scalloped cam 55 causes to be rocked the cradle assembly including lever 85, tandem bar 88, and the several cradles 89 whereupon all of the mercury switch tubes 22 open and close their respective circuits generating exciting impulses for the gongs 95 and sounding out a number of audible gong signals corresponding to the number of cam apexes which pass follower roller 84, in the instant casethree.

Thus the operation proceeds on to the third release of cam assembly 35 in response to which nine impulses are generated and a total of nine signals caused to be broadcast by the gongs 95 during the succeeding interval and followed thereafter by a similar period during which a single gong signal is broadcast and, in correspondence with the last integer, two gong signals are broadcast as the final cam I03 effects ilt2s4function of closing the contact pairs I23 and When following the transmission of the final signal, storage assembly 36 for the last time encounters trigger GI and causes the closure of contact pairs I31, a circuit is established for energizing release magnet I21 which remains energized until its circuit is broken at contact pairs H1, H8, and H9. Of these the contact pair H1 is effective to interrupt the flow of ground from source I41 and because the contact pair at I25 is not then manually energized, magnet I21 will thereat become de-energized and the cam assembly 35 will be arrested in its zero position; namely, with cam II3 disposed so that its apex closes the contact pair H4 in readiness for a subsequent message signal transmission.

While the present invention has been explained and described with reference to a particular embodiment as indicated in the foregoin detailed specification and in the accompanying drawings, it is contemplated, nevertheless, that numerous modifications and variations may be incorporated without departure from its essential spirit or scope. Accordingly, it is not intended to be limited by the specific language employed in the foregoing specification nor by the particular de Cit tails in the accompanying illustrations except as indicated in the hereunto appended claims.

What is claimed is:

1. A rotary signal controlling device, comprising a frictionally driven wheel, a plurality of settable bars peripherally disposed above said wheel each bar having a spring element urging it in one direction and including a shouldered portion for latching said bar when moved in the opposite direction, stop means for arrestin said Wheel in accordance with the setting of one of said plurality of bars, an electromagnet for withdrawing said stop means to release said wheel to rotation, and a cam device for resetting each of said bars after said wheel has been released to rotation.

2. An impulse generator, comprising a frictionally driven wheel, a plurality of elements carried by said wheel each having a spring for urging it in one direction and including means for latching when moved in an opposite direction, stop means for arresting said wheel when it encounters any of said plurality of elements in its set position, a release for withdrawing said stop element following arrestment, and a device for restoring each one of said elements following release of said wheel.

3. A signal storing mechanism, comprising a frictionally driven wheel, a plurality of settable bars carried by said wheel each bar having a spring for urging it in one direction and including a shouldered portion for latching said bar when moved in an opposite direction, stop means for arresting said wheel when it encounters any of said plurality of settable bars in its latched position, a release for withdrawing said stop element following arrestment, and a cam projection in proximity with said wheel which following the release of said wheel engages the shouldered portion of the settable bars to restore each one to its normal position preparatory to being reset.

4. In a signal storing mechanism, comprising a frictionally driven wheel, a plurality of elements carried by said wheel each having a spring for urging it in one direction and includin means for latching when moved in an opposite direction, a bar having a shoulder thereon for engaging with said latched element to arrest rotation of said wheel, an electromagnet for causing the shoulder portion of said bar to be withdrawn from said latched element to release said wheel to rotation, and means to restore said elements to unlatched position after said wheel has been released to rotation.

5. A signal storing mechanism, comprising a frictionally driven wheel, a plurality of elements carried by said wheel each having a spring for urging it in one direction and including means for latching when moved in an opposite direction, a pivoted bar having a shoulder thereon for engaging with said latched element to arrest rotation of said wheel, an electromagnet having an armature, a pivoted bell crank lever one arm of which is in proximity with said magnet armature and the other arm of which is disposed Within a slot in said pivoted bar, means to energize said magnet to cause the armature to move against -the one arm of the bell crank lever and cause said lever to be pivoted resulting in its opposite arm moving downwardly and withdrawing the shoulder of said pivoted bar for engagement with said latched element thus releasing the wheel for rotation, and means for restoring each one of said elements to an unlatched position following the release of said wheel.

6. A signal storing mechanism, comprising a frictionally driven wheel composed of two spaced plates, a plurality of settable bars carried by said wheel and slidable between said spaced plates each bar having a spring for urging it in one direction and including a shouldered portion for latching said bar when moved in an opposite direction, a plurality of slots in one of said plates to engage the shouldered portion of said settable bar to latch said bar, stop means for arresting said wheel when it encounters any of said plurality of settable bars in its latched position, a release for withdrawing said stop element following arrestment, and cam means to engage said shouldered portion of said settable bar following the release of said wheel to urge said bar downwardly and free said shouldered portion from saidslot in said plate to restore each one to its normal position preparatory to being reset.

7. A signal storing mechanism, comprising a frictionally driven wheel, a plurality of elements carried by said wheel each having a spring for urging it in one direction and including means for latching when moved in an opposite direction, a bar having a shoulder thereon for engaging with said latched element to arrest rotation of said wheel, a spring urging said shouldered bar into motion arresting position, an electromagnet for causing the shoulder of said bar to be Withdrawn from said latched element to allow said wheel to rotate, and means to restore said elements from latched to unlatched positions.

WALTER J. ZENNER. 

